<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">

      <div class="title-container">
        <h3 class="title">
          <img src="@/assets/login-logo.png" alt="">
        </h3>
      </div>
      <el-form-item prop="mobile">
        <span class="svg-container el-icon-user-solid" />
        <el-input v-model="loginForm.mobile" placeholder="请输入手机号码" />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input ref="pwdInput" v-model="loginForm.password" :type="type" placeholder="请输入密码" />
        <span class="svg-container" @click="changePwd">
          <!-- type === 'password'? 'eye':'eye-open' -->
          <svg-icon :icon-class="`${type === 'password'? 'eye':'eye-open'}`" />
        </span>
      </el-form-item>
      <!-- element-ui提供的自定义指令 -->
      <el-button v-loading="loading" type="primary" class="loginBtn" @click="submitLogin">Login</el-button>

      <div class="tips">
        <span style="margin-right:20px;">账号: 13800000002</span>
        <span> 密码: 123456</span>
      </div>

    </el-form>
  </div>
</template>

<script>
import { valiPhone } from '@/utils/validate'
export default {
  name: 'Login',
  data() {
    const checkPhone = (rule, value, callback) => {
      if (valiPhone(value)) {
        callback()
      } else {
        callback(new Error('手机号格式不对'))
      }
    }
    return {
      loginForm: {
        mobile: '13800000002',
        password: '123456'
      },
      // 手机号 必填  格式 按照国家要求来
      // 密码 必填  长度 6，16
      loginRules: {
        mobile: [
          { required: true, message: '手机号 必填', trigger: 'blur' }, // rule
          // { pattern: /^(?:(?:\+|00)86)?1(?:(?:3[\d])|(?:4[5-79])|(?:5[0-35-9])|(?:6[5-7])|(?:7[0-8])|(?:8[\d])|(?:9[189]))\d{8}$/, message: '手机号格式不对', trigger: 'blur' }
          { validator: checkPhone, trigger: 'blur' }
        ],
        password: [
          { required: true, message: '密码 必填', trigger: 'blur' },
          { min: 6, max: 16, message: '密码格式不对', trigger: 'blur' }
        ]
      },
      type: 'password',
      loading: false
    }
  },
  methods: {
    // 点击眼睛 实现 密码框切换睁眼闭眼效果
    // 1. 给眼睛 点击事件
    // 2. 准备字段 输入框的类型/图片类型 type
    // 3. 应用type 实现逻辑
    // 4. 操作的时候 获得焦点 focus
    async changePwd() {
      // type 状态的切换
      // type 密码的时候 换成 普通的
      // type 普通的时候 换成 密码的
      this.type === 'password' ? this.type = '' : this.type = 'password'
      // Vue dom 异步更显
      // await this.$nextTick() // promise
      this.$nextTick(() => {
        this.$refs.pwdInput.focus()
      })
    },
    // 给login 点击事件
    // 对表单 发起整体校验 form validate()==> form组件
    submitLogin() {
      // ref / refs
      this.$refs.loginForm.validate(async(vali) => {
        // vali
        if (vali) {
          // 接口待用
          try {
            this.loading = true
            await this.$store.dispatch('user/loginAction', this.loginForm)
          } finally {
            this.loading = false
          }
          // 完善登录
          this.$router.push('/')
        }
      })
    }
  }
}
</script>
<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#68b0fe;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.7);
    border-radius: 5px;
    color: #454545;
  }
  .el-form-item__error {
    color: #fff;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#68b0fe;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;
  background-image: url('~@/assets/login.jpg');
  background-position: center;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }

  .loginBtn {
    background: #407ffe;
    height: 64px;
    line-height: 32px;
    font-size: 24px;
    width:100%;
    margin-bottom:30px
  }
}
</style>
